Scilab Function
Last update : April 1993

coshm - matrix hyperbolic cosine

Calling Sequence

t=coshm(x)

Parameters

Description

coshm is the matrix hyperbolic cosine of the matrix x. t=(expm(x)+expm(-x))/2. Result may be inaccurate for nonsymmetric matrix.

Examples


A=[1,2;2,4]
acoshm(coshm(A))
 
  

See Also

cosh,  expm,